Vcsn 2.5 (January 28th, 2017)

The Vcsners are proud to announce the release of Vcsn 2.5, aka the k-lightest release!

Noteworthy changes include:

• two new implementations to compute the k-lightest paths (aka "best" paths: with the smallest weights) in tropical automata.
• several new demos showing how to use the C++ library, including a translator from (French) text messages (aka SMS) into French.
• better error messages with caret-style locations.
• a new means for the users to configure Vcsn. This adds a new prerequisite to build Vcsn: libyaml-cpp.
• a much better and faster caching system of runtime generated C++ code. Users of dyn (and therefore of Python) should note an improved amortization of the compilation costs.
• several portability issues reported by users were fixed.

For more information, please, the NEWS file.

People who worked on this release:

• Akim Demaille
• Clément Démoulins
• Clément Gillard
• Sarasvati Moutoucomarapoulé
• Sébastien Piat
• Younes Khoudli

Documentation

• Documentation of the Python interface
• The News File contains many examples
• The C++ reference manual

Available Ports

• Docker

Run this command to pull and start the Vcsn docker image on port 8888

docker run -d -p 8888:8888 lrde/vcsn:2.5

• Debian Jessie

Run this command

echo 'deb http://www.lrde.epita.fr/repo/debian/ stable/' >/etc/apt/sources.list.d/lrde.list
apt-get update
apt-get install vcsn
# Jupyter is not currently available on Debian
apt-get install python3-pip python3-dev libzmq3-dev
pip3 install jupyter

• Archlinux (AUR)

Run this command:

yaourt -S vcsn

• MacPorts

Run this command:

sudo port sync && sudo port install vcsn

Downloads

• Tarballs (sources to compile):
  • vcsn-2.5.tar.bz2 (25MB) (md5sum: 0ac5838f233226426b2b94cc0d52ce14)
  • vcsn-2.5.tar.xz (14MB) (md5sum: 54d3c20c93787c0584af06996c3b01bb)

Requirements

In order to compile Vcsn 2.5, you need:

Boost

Boost (version 1.49 or later) provides free peer-reviewed portable C++ source libraries (at least the Boost.Python and Boost.Regex components, and probably others).

Ccache

Compiler cache.

C++ compiler

Clang 3.6 or newer and GNU G++ 4.9 or newer are known to work properly.

Doxygen

To build the C++ reference manual.

Graphviz

The display of automata is made using AT&T Graphviz library. (On Ubuntu/Debian, install the following package: graphviz)

Flex

The Flex scanner generater, 2.5.37 or better.

IPython

Although not strictly needed, it is required if you want to enjoy the Vcsn interactive notebooks.

Python

Python 3 is required

Yaml-cpp

Version 0.5.1 or 0.5.3 or more recent, but not 0.5.2.